Horizon / Plein textes La base de ressources documentaires de l'IRD

IRD

 

Publications des scientifiques de l'IRD

Dégallier Nicolas, Servain Jacques, Lucio P. S., Hannart A., Durand B., de Souza R. N., Ribeiro Z. M. (2012). The influence of local environment on the aging and mortality of Aedes aegypti (L.) : case study in Fortaleza-CE, Brazil. Journal of Vector Ecology, 37 (2), 428-441. ISSN 1081-1710

Accès réservé (Intranet IRD) Demander le PDF

Lien direct chez l'éditeur doi:10.1111/j.1948-7134.2012.00247.x

Titre
The influence of local environment on the aging and mortality of Aedes aegypti (L.) : case study in Fortaleza-CE, Brazil
Année de publication2012
Type de documentArticle référencé dans le Web of Science WOS:000311604600023
AuteursDégallier Nicolas, Servain Jacques, Lucio P. S., Hannart A., Durand B., de Souza R. N., Ribeiro Z. M.
SourceJournal of Vector Ecology, 2012, 37 (2), p. 428-441. ISSN 1081-1710
RésuméIt is generally assumed that the daily probability of survival of mosquitoes is independent of age. To test this assumption we have conducted a three-year experimental fieldwork study (20052007) at Fortaleza-CE in Brazil, determining daily survival rates of the dengue vector Aedes aegypti (L.). Survival rates of adult Ae. aegypti may be age-dependent and the statistical analysis is a sensitive approach for comparing patterns of mosquito survival. The mosquito survival data were better fit by a Weibull survival function than by the more traditionally used Gompertz or logistic survival functions. Gompertz, Weibull, or logistic survival functions often fit the survival, and the tails of the survival curves usually appear to fall between the values predicted by the three functions. We corroborate that the mortality of Ae. aegypti in semi-natural conditions may no more be considered as a constant phenomenon during the life of adult mosquitoes but varies according to the age and environmental conditions under a tropical climate. This study estimates the variability in the survival rate of Ae. aegypti and environmental factors that are related to such variability. The statistical analysis shows that the fitting ability, concerning the hazard function, was in decreasing order: Seasonal Cox, the three-parameter Gompertz, and the three-parameter Weibull, that was similar to the three-parameter logistic. The advantage of using the Cox model is that it is convenient for exploring the relationship between survival and several explanatory variables. The Cox model has the advantage of preserving the variable in its original quantitative form and of using a maximum of information. The survival analyses indicate that mosquito mortality is both age- and environment-dependent.
Plan de classementEntomologie médicale / Parasitologie / Virologie [052] ; Sciences du monde animal [080]
LocalisationFonds IRD [F B010058204]
Identifiant IRDfdi:010058204
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010058204

Export des données

Disponibilité des documents

Télechargment fichier PDF téléchargeable

Lien sur le Web lien chez l'éditeur

Accès réservé en accès réservé

HAL en libre accès sur HAL


Accès aux documents originaux :

Le FDI est labellisé CollEx

Accès direct

Bureau du chercheur

Site de la documentation

Espace intranet IST (accès réservé)

Suivi des publications IRD (accès réservé)

Mentions légales

Services Horizon

Poser une question

Consulter l'aide en ligne

Déposer une publication (accès réservé)

S'abonner au flux RSS

Voir les tableaux chronologiques et thématiques

Centres de documentation

Bondy

Montpellier (centre IRD)

Montpellier (MSE)

Cayenne

Nouméa

Papeete

Abidjan

Dakar

Niamey

Ouagadougou

Tunis

La Paz

Quito